Heating apparatus.



No. 686,393. Patented Nov. [2, [90L W. DAWSON.

HEATING APPARATUS.

(Application filed Aug, 3, 1900.\

(No Model.)

ITNESSES: INVENTOR:

Vwm 62% z THE "cams PErERS m, vmno-uma,wwnlucron. n. r.

v citizen of the United States, residing at No.-

UNITED STATES PATENT OFFICE;

WILLIAM DAWSON, OF GERMANTOWN, PENNSYLVANIA, ASSIGNOB TO PURE AIR STOVE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA-i TION OF PENNSYLVANIA.

HEATING'APPYARATUS.

SPECIFICATION forming part of Letters Patent N 0. 686,393, dated November 12, 1901.

Application filed August 3, 1900. Serial No. 25,729. (No model) I To aZZ whom it may concern:

Be it known that I, WILLIAM DAWSON, a

6220 Morton street, Germantown, in the city andcounty of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Heating Apparatus, whereof the following is aspecification, reference being had to the accompanying drawing.

Said drawing represents a vertical central .section through a heating apparatus embodying my invention in its preferred form.

The purpose of my invention is'to provide a device whereby a room may be heated by means of a small burner, such as an ordinary kerosene-lamp, and at the same time venti lated by the action thereof, so that not only shall the products of combustion be discharged at a point exterior to the room, but a constant supply of fresh air shall'be drawn in and distributed.

Referring to the drawing, A represents a sheet-metal body, preferably cylindrical in form, supported upon a base A, having legs A a door-a being provided to afiord access to the lamp. Perforations a, aremade in the lower portion of the body to admit air for sup port of combustion in the lamp. The lamp proper consists of a receptacle B, which in the instance shown is made integral with the base A of the body and closed by a cover I),

said cover supporting the burner b and chimney O. A pipe D extends longitudinally through the body,-opening at its lower end close to the floor and being conducted, by means of an elbow and lateral extensions cl above the body, to a point of discharge extesing material, such as asbestos.

At a point within the stove-body and preferably opposite to the upper end of the lampchimney'O a hole at is made in the pipe D, into which the smoke and products of combust-ion of the lamp are drawn by the updraft within said pipe. v

A fresh-air pipe G leads in from the lower provided with openingsf to admit air. Said pipe G connects by an elbow with the vertical pipe G, which leads down to the lower portion of the body A and then enters the compartment of the hood F, which latter is upwardly within the body. The portion G immediately adjacent to the lamp-chimney is formed of or covered by non-heat-conduct- Above this the portion G is formed of metal and leads into an enlarged drum G supported near the top of the body. Said drum is provided with an exit-pipe g, leading out through the side of the body near its top, the orifice being controlled by an ordinary register g.

The operation of the device is as follows: The'lamp being lighted, the products of combustion and the hot air from the chimneydiffuse themselves throughout the body A and impinge upon the drum G and pipe G so as to heat the same to a high temperature. The portion of the pipe which is immediately adjacent to the lamp-chimney being made of non-conducting material is less heated, and thus the lower portion and elbow are relatively cool as compared withthe drum G and pipe G The object of this method of construction is to prevent the undue heating of the lower portion of the pipe and the communication of the heat to the exterior parts, such as the outer end of the elbow G and Vertical pipe G, which might occasion an updraft of air therein or impede the access of fresh air. The smoke and products of comings f.

is drawn down and then up into the drum G where it is heated and finds its exit through the register ginto the room.

By means of the apparatus just described a comparatively small lamp will supply sulficient heat for a room without any smell of smoke or escape of foul air from the lamp itself and \vill, moreover, draw in a constant supply of fresh air, discharging a corresponding quantity of foul air drawn from near the floor.

I have described the portion of the pipe immediately adjacent to the lamp-chimney and indicated at G as being constructed of or covered by non-heat-conductiug material; but it is obvious that a similar result might be obtained by properly shielding or isolating that portion of the pipe, and I therefore wish it to be understood that I intend to comprehend such device within my claims.

Having thus described my invention, I claim-- 1. The combination of a body; a burner contained therein; a discharge-flue having its lower end opening outside of'the body and near the base thereof, said flue extending longitudinally with the body, and being provided with an opening which communicates with the interior of the body to permit the discharge of the products of combustion through said fine; a drum arranged within said body above said burner, and having a discharge-orifice exterior to the body; a r

fresh-air-inlet pipe leading from a proper point and upwardly prolonged within said body to communicate with the interior of said drum, the portion of said pipe which is adjacent to the burner being of non-heat-conducting material, substantially as set forth.

2. The combination of a body; a burner contained therein; a discharge-flue having its lower end opening outside of the body and near the base thereof, said flue extending longitudinally with the body, and being provided with an opening which communicates with the interior of the body to permit the discharge of the products of combustion through said flue; said flue leading to a proper point of discharge; a drum arranged within said body and above said burner, and having a discharge -orifice exterior to the body; a fresh-air-inlet pipe leading from a point adjacent to but below the termination of the discharge-flue, and upwardly prolonged within said body to a point of communication with said drum, the portion of said inlet-pipe which is adjacent to the burner being of nonheat-conducting material; and a subdivided hood arranged with reference to the air-inlet and discharge-flue outlet, substantially as set fort-h.

\VM. DANVSON.

Witnesses:

JAMES H. BELL, E. REESE. 

